code: def tearDown(self):
      # Free huge memory for slow test
      cupy.get_default_memory_pool().free_all_blocks()
  
imports: import unittest
  import sys
  import numpy
  import pytest
  import cupy
  from cupy._core import core
  from cupy import testing
  from cupy_tests.core_tests import test_raw
label_desc: Use image node_id 1 for calling the TestSize obj's underlying member method code with example usage: obj.tearDown() without return types